Prevents wear due to thermal movement. Used to isolate sheet metal roofing from substrates allowing metal sheet to expand and contract with temperature changes. Useful on existing traditional Timber boards to prevent ridges and fractures forming on the lead sheet where the lead ridges over the edges of the boards.
A non-woven, needle punched polyester textile underlay, weighing 220 g/m², conforming to the Lead Sheet Association's requirements.
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Calder Industrial Materials is consulted before specifying.
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| Uniclass (?) | Ss_30_40 Roof and balcony covering and finish systems | |